[maven-release-plugin] prepare release GMapsFX-2.12.0
[maven-release-plugin] prepare release GMapsFX-2.12.0

rterp/GMapsFX,sercan5534/GMapsFX,sercan5534/GMapsFX,GeoffCapper/GMapsFX,GeoffCapper/GMapsFX,sercan5534/GMapsFX,rterp/GMapsFX,GeoffCapper/GMapsFX,rterp/GMapsFX